<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Fibonaci Sequence</title>
<style type='text/css'>
	th { text-align: left; background-color: #999;}
	th, td { padding: 0.4em; }
	tr.alt td { background: #ddd; }
</style>
</head>
<body>
	<h1>Fibonaci Sequence</h1>
	<table cellspacing="0" border="0" style="width:20em;border:1px solid #666">
		<tr>
			<th>Sequence #</th>
			<th>Value</th>
		</tr>
		<tr>
			<td>F<sub>0</sub></td>
			<td>0</td>
		</tr>
		<tr class="alt">
			<td>F<sub>1</sub></td>
			<td>1</td>
		</tr>
		<?php
			$iterations = 10;

			$num1 = 0;
			$num2 = 1;

			for ($i=2; $i < $iterations; $i++) { 
				$sum = $num1 + $num2;
				$num1 = $num2;
				$num2 = $sum;
		?>
			<tr <?php if ($i % 2 != 0) {echo 'class="alt"';} ?>>
				<td>F<sub><?php echo $i; ?></sub></td>
				<td><?php echo $num2 ?></td>
			</tr>
		<?php 
			} 
		?>
	</table>
</body>
</html>